Going wees, urinating in a toilet or bush or where ever you see fit at the time. Relieving yourself. pissing. pull down teh boxers / flop out your snake and aim. OR pull down underwear and try not to get it on yourself, if you are in say the bushes... with no loosloos around, It could be the only option....
if u dont, u will probably die..
(I need to): urinate, piss, slash, chop, piddle, squat, go no1's, noonaa